Walker 255-1155 Fuel Injection Pressure Regulator

Fuel Pressure Control for Select Kia and Mazda

Walker Products 255-1155 is a fuel injection pressure regulator built for select Kia and Mazda applications. It supports stable fuel delivery in vehicles such as the 1995-1997 Kia Sephia and 1989-1994 Mazda MPV, 1990-1993 Mazda B2200, and 1989-1993 Mazda B2600.

Key Features

• Fuel injection pressure regulator for air and fuel delivery systems
• Walker Products engineering and manufacturing support
• Built to meet or exceed OEM standards and specifications
• ISO 9001 and IATF 16949 certified manufacturing environment
• Direct-fit application coverage for select Mazda and Kia models
• Part number 255-1155 for easy identification

Product Details

Walker Products has supplied fuel system components since 1946 and focuses on aftermarket fuel delivery parts, engine sensors, and related engine management components. The 255-1155 fuel injection pressure regulator is part of that product line and is engineered for accurate application matching, technical support, and consistent production quality. This part cross-references Standard Ignition PR65 and PR475 for the same application. For buyers searching for a Mazda MPV fuel injection pressure regulator or a Kia Sephia fuel pressure regulator, 255-1155 provides a cataloged replacement option backed by Walker Products manufacturing standards.

What This Part Helps Address

• Fuel pressure that is too high or too low
• Hard starting caused by unstable fuel delivery
• Rough idle related to pressure regulation issues
• Fuel mixture problems tied to inconsistent injector pressure
• Driveability complaints in aging fuel injection systems

Installation Notes

Verify the vehicle application by year, make, and model before installation. Confirm the regulator location and fuel system configuration on the vehicle, and inspect related fuel lines, seals, and connectors during service. Use clean working practices around the fuel system and follow the vehicle service manual for removal and replacement procedures.

Quality Assurance

Walker Products manufactures fuel system components to meet or exceed OEM standards and specifications. The company supports production with in-house manufacturing, product management, engineering, and technical documentation, and operates under ISO 9001 and IATF 16949 certification.